Commit graph

62 commits

Author SHA1 Message Date
Eelco Dolstra
85c8be6286 Remove static variable name clashes
This was useful for an experiment with building Nix as a single
compilation unit. It's not very useful otherwise but also doesn't
hurt...
2020-10-06 13:49:20 +02:00
Bryan Richter
5fe375a8f1
nix-prefetch-url: Add --executable flag
pkgs.fetchurl supports an executable argument, which is especially nice
when downloading a large executable. This patch adds the same option to
nix-prefetch-url.

I have tested this to work on the simple case of prefetching a little
executable:

1. nix-prefetch-url --executable https://my/little/script
2. Paste the hash into a pkgs.fetchurl-based package, script-pkg.nix
3. Delete the output from the store to avoid any misidentified artifacts
4. Realise the package script-pkg.nix
5. Run the executable

I repeated the above while using --name, as well.

I suspect --executable would have no meaningful effect if combined with
--unpack, but I have not tried it.
2020-09-18 19:09:45 +03:00
John Ericson
c466cb2091 Merge branch 'hash-always-has-type' into better-ca-parse-errors 2020-07-13 03:02:09 +00:00
John Ericson
4415765385 Merge remote-tracking branch 'upstream/master' into hash-always-has-type 2020-07-13 03:01:44 +00:00
Eelco Dolstra
5dff49f661 Factor out commonality between nix-prefetch-url and nix-store --add-fixed 2020-07-10 13:21:37 +02:00
Eelco Dolstra
06e3dd9005 nix-prefetch-url: Run in constant memory when using RemoteStore
Fixes #3684.
2020-07-10 11:22:48 +02:00
Carlo Nucera
263ccdd489 Rename two hash constructors to proper functions 2020-07-01 18:34:18 -04:00
John Ericson
20799a5151 WIP: Make Hash always store a valid hash type 2020-06-19 19:32:29 +00:00
John Ericson
15abb2aa2b Revert the enum struct change
Not a regular git revert as there have been many merges and things.
2020-06-18 22:11:26 +00:00
John Ericson
bbbf3602a3 Merge branch 'enum-class' into no-hash-type-unknown 2020-06-18 22:11:19 +00:00
John Ericson
40526fbea5 Merge remote-tracking branch 'upstream/master' into enum-class 2020-06-18 21:38:15 +00:00
Ben Burdette
ef1b3f21b6 Merge remote-tracking branch 'upstream/master' into errors-phase-2 2020-06-11 14:06:35 -06:00
regnat
801112de1a Move progress-bar.cc to libmain
Needed so that we can include it as a logger in loggers.cc without
adding a dependency on nix

This also requires moving names.hh to libutil to prevent a circular
dependency between libmain and libexpr
2020-06-08 17:16:52 +02:00
John Ericson
450dcf2c1b Remove HashType::Unknown
Instead, `Hash` uses `std::optional<HashType>`. In the future, we may
also make `Hash` itself require a known hash type, encoraging people to
use `std::optional<Hash>` instead.
2020-06-02 15:52:13 +00:00
Ben Burdette
734283d636 Merge remote-tracking branch 'upstream/master' into errors-phase-2 2020-05-29 09:51:37 -06:00
Carlo Nucera
4f597fb901 Merge branch 'master' of github.com:NixOS/nix into enum-class 2020-05-28 10:58:22 -04:00
Carlo Nucera
6d73c10041 Merge remote-tracking branch 'origin/master' into enum-FileIngestionMethod 2020-05-26 11:14:08 -04:00
Ben Burdette
59b1f5c701 Merge branch 'master' into errors-phase-2 2020-05-11 14:35:30 -06:00
Ben Burdette
e4fb9a3849 remove 'format' from Error constructor calls 2020-04-21 17:07:07 -06:00
Nikola Knezevic
f5095594e7 datatransfer.{cc,hh} -> filetransfer.{cc,hh} 2020-04-08 22:26:57 +02:00
Nikola Knezevic
c330109bfa DataTransfer -> FileTransfer 2020-04-08 22:26:57 +02:00
Nikola Knezevic
cd391206e6 {get,make,new}Downloader -> DataTransfer 2020-04-08 22:26:57 +02:00
Nikola Knezevic
741e9012d3 Rename src/lib/download.* to src/lib/datatransfer.* 2020-04-08 22:26:57 +02:00
Nikola Knezevic
65ef57e0cb DownloadRequest -> DataTransferRequest 2020-04-08 22:26:57 +02:00
John Ericson
c251b011cd Merge remote-tracking branch 'upstream/master' into enum-FileIngestionMethod 2020-03-30 18:16:44 -04:00
Eelco Dolstra
e322a16523 Remove global -I flags
(cherry picked from commit 2c692a3b14)
2020-03-30 15:30:19 +02:00
John Ericson
225e62a56a Replace some bool recursive with a new FileIngestionMethod enum 2020-03-29 15:16:20 -04:00
John Ericson
87b32bab05 Use enum struct and drop prefixes
This does a few enums; the rest will be gotten in subsequent commits.
2020-03-29 11:23:15 -04:00
Eelco Dolstra
c1ca4f0acc findAlongAttrPath(): Return position
(cherry picked from commit 0b013a54dc)
2020-03-24 14:06:47 +01:00
Daiderd Jordan
66fccd5832
build: fix sandboxing on darwin
Starting ba87b08f85 getEnv now returns an
std::optional which means these getEnv() != "" conditions no longer happen
if the variables are not defined.
2020-01-05 20:23:52 +01:00
Eelco Dolstra
ee235e764c
Merge branch 'libarchive' of https://github.com/yorickvP/nix 2019-12-19 14:47:18 +01:00
Eelco Dolstra
bbe97dff8b Make the Store API more type-safe
Most functions now take a StorePath argument rather than a Path (which
is just an alias for std::string). The StorePath constructor ensures
that the path is syntactically correct (i.e. it looks like
<store-dir>/<base32-hash>-<name>). Similarly, functions like
buildPaths() now take a StorePathWithOutputs, rather than abusing Path
by adding a '!<outputs>' suffix.

Note that the StorePath type is implemented in Rust. This involves
some hackery to allow Rust values to be used directly in C++, via a
helper type whose destructor calls the Rust type's drop()
function. The main issue is the dynamic nature of C++ move semantics:
after we have moved a Rust value, we should not call the drop function
on the original value. So when we move a value, we set the original
value to bitwise zero, and the destructor only calls drop() if the
value is not bitwise zero. This should be sufficient for most types.

Also lots of minor cleanups to the C++ API to make it more modern
(e.g. using std::optional and std::string_view in some places).
2019-12-10 22:06:05 +01:00
Yorick van Pelt
9ff5f6492f
libarchive proof of concept 2019-12-07 22:35:14 +07:00
Eelco Dolstra
8918bae098 Drop remaining uses of external "tar"
Also, fetchGit now runs in O(1) memory since we pipe the output of
'git archive' directly into unpackTarball() (rather than first reading
it all into memory).
2019-11-26 22:07:28 +01:00
Eelco Dolstra
7751616645
nix-prefetch-url: Stop progress bar before printing results 2018-11-09 10:34:12 +01:00
Will Dietz
9d24b5d56e nix-prefetch-url: progressbar 2018-10-26 13:19:10 -05:00
Eelco Dolstra
f6a3dfe4e0
Merge all nix-* binaries into nix
These are all symlinks to 'nix' now, reducing the installed size by
about ~1.7 MiB.
2018-10-26 12:54:00 +02:00
Eelco Dolstra
1b34b69b45
nix-prefetch-url: Download file in constant memory
Before:

  $ command time nix-prefetch-url https://cdn.kernel.org/pub/linux/kernel/v4.x/linux-4.17.6.tar.xz
  1.19user 1.02system 0:41.96elapsed 5%CPU (0avgtext+0avgdata 182720maxresident)k

After:

  1.38user 1.05system 0:39.73elapsed 6%CPU (0avgtext+0avgdata 16204maxresident)k

Note however that addToStore() can still take a lot of memory
(e.g. RemoteStore::addToStore() is constant space, but
LocalStore::addToStore() isn't; that's fixed by
c94b4fc7ee
though).

Fixes #1400.
2018-07-12 18:48:41 +02:00
Eelco Dolstra
0629601da1
Move EvalState from the stack to the heap
EvalState contains a few counters (e.g. nrValues) that increase
quickly enough that they end up being interpreted as pointers by the
garbage collector. Moving it to the heap makes them invisible to the
garbage collector.

This reduces the max RSS doing 100 evaluations of
nixos.tests.firefox.x86_64-linux.drvPath from 455 MiB to 292 MiB.

Note: ideally, allocations would be much further up in the 64-bit
address space to reduce the odds of an integer being misinterpreted as
a pointer. Maybe we can use some linker magic to move the .bss segment
to a higher address.
2018-06-12 17:49:55 +02:00
Shea Levy
88cd2d41ac
Add plugins to make Nix more extensible.
All plugins in plugin-files will be dlopened, allowing them to
statically construct instances of the various Register* types Nix
supports.
2018-02-08 12:44:37 -05:00
Eelco Dolstra
0d59f1ca49
nix: Respect -I, --arg, --argstr
Also, random cleanup to argument handling.
2017-10-24 12:58:34 +02:00
Eelco Dolstra
aca4f7dff0
Don't remove Content-Encoding in fetchurl / nix-prefetch-url
Fixes #1568.
2017-09-18 11:07:28 +02:00
Jörg Thalheim
2fd8f8bb99 Replace Unicode quotes in user-facing strings by ASCII
Relevant RFC: NixOS/rfcs#4

$ ag -l | xargs sed -i -e "/\"/s/’/'/g;/\"/s/‘/'/g"
2017-07-30 12:32:45 +01:00
Eelco Dolstra
c0015e87af
Support base-64 hashes
Also simplify the Hash API.

Fixes #1437.
2017-07-04 15:07:41 +02:00
Eelco Dolstra
25dff2b7db
runProgram(): Distinguish between empty input and no input
For example, if we call brotli with an empty input, it shouldn't read
from the caller's stdin.
2017-03-15 16:50:19 +01:00
Eelco Dolstra
215b70f51e
Revert "Get rid of unicode quotes (#1140)"
This reverts commit f78126bfd6. There
really is no need for such a massive change...
2016-11-26 00:38:01 +01:00
Guillaume Maudoux
f78126bfd6 Get rid of unicode quotes (#1140) 2016-11-25 15:48:27 +01:00
Eelco Dolstra
c55bf085eb printMsg(lvlError, ...) -> printError(...) etc. 2016-09-21 16:54:53 +02:00
Eelco Dolstra
90ad02bf62 Enable HTTP/2 support
The binary cache store can now use HTTP/2 to do lookups. This is much
more efficient than HTTP/1.1 due to multiplexing: we can issue many
requests in parallel over a single TCP connection. Thus it's no longer
necessary to use a bunch of concurrent TCP connections (25 by
default).

For example, downloading 802 .narinfo files from
https://cache.nixos.org/, using a single TCP connection, takes 11.8s
with HTTP/1.1, but only 0.61s with HTTP/2.

This did require a fairly substantial rewrite of the Downloader class
to use the curl multi interface, because otherwise curl wouldn't be
able to do multiplexing for us. As a bonus, we get connection reuse
even with HTTP/1.1. All downloads are now handled by a single worker
thread. Clients call Downloader::enqueueDownload() to tell the worker
thread to start the download, getting a std::future to the result.
2016-09-14 16:36:02 +02:00
Eelco Dolstra
ee22a91ab8 makeFixedOutputPath(): Drop superfluous HashType argument 2016-07-26 21:25:52 +02:00